Reputation: 12925
Here is my problem:
Create a MainActivity. Add a button which will start another activity SecondActivity.
Intent i = new Intent(getActivity(),SecondActivity.class);
startActivityForResult(i,0);
Inside the SecondActivity, I capture the back button click event and also add a button to return to the first Activity.
When back button in action bar is clicked:
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// back button
Intent resultIntent = new Intent();
// TODO Add extras or a data URI to this intent as appropriate.
setResult(Activity.RESULT_OK, resultIntent);
//finish();
return false;
}
return super.onOptionsItemSelected(item);
}
When the button inside activity is clicked:
Button btn = (Button)this.findViewById(R.id.button2);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent resultIntent = new Intent();
// TODO Add extras or a data URI to this intent as appropriate.
setResult(Activity.RESULT_OK, resultIntent);
finish();
}
});
The onActivityResult in MainActivity is called when I click the button inside the SecondActivity, but it's never been called if I click the back button in Actionbar of SecondActivity. Can anybody tell me why? Thanks
Upvotes: 4
Views: 4526
Reputation: 33
Good answer is Gopal Rao code in the same question. Its worked for me. This is a copy of his solution:
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
Intent result = new Intent((String) null);
result.putExtra("SOME_CONSTANT_NAME", true);
setResult(RESULT_OK, result);
finish();
return true;
}
else {
return super.onOptionsItemSelected(item);
}
}
Upvotes: 1
Reputation: 85
Try this:-
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
Intent resultIntent = new Intent();
setResult(Activity.RESULT_OK, resultIntent);
onBackPressed();
return true;
}
return super.onOptionsItemSelected(item);
}
Upvotes: 1
Reputation: 12925
Here is the code which is working:
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// back button
Intent resultIntent = new Intent();
setResult(Activity.RESULT_OK, resultIntent);
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
I guess the finish() will close the current Activity, and return true inform that action has been processed. (The default back action seems to be different from finish().)
Upvotes: 4